Mac: Sheets should be positioned between the content and everything above it.
Mac: Sheets should be positioned between the content and everything above it.

BUG=17615

Review URL: http://codereview.chromium.org/219032

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@27378 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser